<template>
    <div class="app-container">
      <el-row :gutter="20">
        <el-col :span="24" :xs="24">
          <!-- 搜索表单 -->
          <el-form :model="queryParams" ref="queryForm" :inline="true" label-width="68px">
            <el-form-item label="套餐ID" prop="packageId">
              <el-input v-model="queryParams.packageId" placeholder="请输入套餐ID" clearable size="small"
                @keyup.enter.native="handleQuery" />
            </el-form-item>
            <el-form-item label="产品ID" prop="productId">
              <el-input v-model="queryParams.productId" placeholder="请输入产品ID" clearable size="small"
                @keyup.enter.native="handleQuery" />
            </el-form-item>
            <el-form-item label="包含产品" prop="packageName">
              <el-input v-model="queryParams.packageName" placeholder="请输入产品名称" clearable size="small"
                @keyup.enter.native="handleQuery" />
            </el-form-item>
            <el-form-item label="可用次数" prop="times">
              <el-input v-model="queryParams.times" placeholder="请输入可用次数" clearable size="small"
                @keyup.enter.native="handleQuery" />
            </el-form-item>
            
            <el-form-item>
              <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
              <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
            </el-form-item>
          </el-form>
  
          <!-- 数据操作按钮 -->
          <el-row :gutter="10">
            <el-col :span="1.5">
              <el-button v-hasAuthority="['pos:package:add']" type="primary" icon="el-icon-plus" size="small" @click="handleAdd">新增</el-button>
            </el-col>
            <el-col :span="1.5">
              <el-button v-hasAuthority="['pos:package:edit']" type="success" icon="el-icon-edit" size="small" :disabled="single"
                @click="handleUpdate">修改</el-button>
            </el-col>
            <el-col :span="1.5">
              <el-button v-hasAuthority="['pos:package:delete']" type="danger" icon="el-icon-delete" size="small" :disabled="multiple"
                @click="handleDelete">删除</el-button>
            </el-col>
          </el-row>
  
          <!-- 数据展示Table -->
          <el-table v-loading="loading" :data="dataList" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="50" align="center" />
            <el-table-column label="套餐ID" align="center" prop="packageId" />
            <el-table-column label="产品ID" align="center" prop="productId" />
            <el-table-column label="包含产品" align="center" prop="productDescription.productName" />
            <el-table-column label="可用次数" align="center" prop="times" />
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
              <template slot-scope="scope">
                <el-button v-hasAuthority="['pos:package:edit']" size="small" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)">修改</el-button>
                <el-button v-hasAuthority="['pos:package:delete']" size="small" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)">删除</el-button>
              </template>
            </el-table-column>
          </el-table>
  
          <!-- 分页加载 -->
          <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
            :current-page="queryParams.pageNum" :page-sizes="[5, 10, 20, 50]" :page-size="queryParams.pageSize"
            layout="total, sizes, prev, pager, next, jumper" :total="total">
          </el-pagination>
        </el-col>
      </el-row>
  
      <!-- 新增/修改对话框 默认不显示 -->
      <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
        <el-form ref="form" :model="form" :rules="rules" label-width="80px">
          <!-- <el-form-item label="套餐ID" prop="packageId">
            <el-input v-model="form.productSn" placeholder="请输入套餐ID" />
          </el-form-item> -->
          <el-form-item label="产品ID" prop="productId">
            <el-input v-model="form.productId" placeholder="请输入产品ID" />
          </el-form-item>
          <!-- <el-form-item label="包含产品" prop="productName">
            <el-input v-model="form.productName" placeholder="请输入套餐包含的产品的名称" />
          </el-form-item> -->
          <el-form-item label="可用次数" prop="times">
            <el-input v-model="form.times" placeholder="请输入可用次数" />
          </el-form-item>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </el-dialog>
    </div>
  </template>
  
  <script>
    import { listPackageByPage, delPackage, addPackage, getPackage, updatePackage } from '@/api/pos/package'
    import { listAll } from '@/api/pos/package'
    export default {
      name: "Package",
      // 定义属性
      data() {
        return {
          // 选中数组
          ids: [],
          // 非单个禁用
          single: false,
          // 勾选1个或多个
          multiple: true,
          // 遮罩层
          loading: false,
          // 表格数据
          dataList: [],
          // 总条数
          total: 0,
          // 查询参数
          queryParams: {
            pageNum: 1,
            pageSize: 5,
            packageId: null,
            packageName: null,
            productId: null
          },
          // 下拉框选项数据
          categoryOptions: [],
          // 弹出层标题
          title: "",
          // 是否显示弹出层
          open: false,
          // 表单
          form: {
            productName: ''
          },
          // 表单校验
          rules: {
            packageId: [
              { required: true, message: "套餐ID不能为空", trigger: "blur" },
            ],
            productId: [
              { required: true, message: "产品ID不能为空", trigger: "blur" },
            ],
            packageName: [
              { required: true, message: "套餐包含的产品不能为空", trigger: "blur" },
            ],
            times: [
              { required: true, message: "可用次数不能为空", trigger: "blur" },
            ],
          },
        }
      },
      // 计算属性，可选
      computed: {},
      // 监控data变化，可选
      watch: {},
      // 生命周期-创建完成，可选
      created() {
        this.getList();
        this.getCategoryOptions();
      },
      // 生命周期-挂载完成，可选
      mounted() {
        this.single = true;
      },
  
      // 方法集合
      methods: {
        /** 查询数据列表 */
        getList() {
          this.loading = true;
          // 结果赋值this.dataList
          listPackageByPage(this.queryParams).then(response => {
            this.dataList = response.data.list;
            this.total = response.data.total;
            this.loading = false;
          })
        },
        /** 处理分页 */
        handleSizeChange(val) {
          this.queryParams.pageSize = val;
          this.getList();
        },
        handleCurrentChange(val) {
          this.queryParams.pageNum = val;
          this.getList();
        },
        /** 查询下拉列表选型 */
        getCategoryOptions() {
          // 访问后端接口，查外键所有对象
          // 结果赋值this.categoryOptions
          listAll().then(response => {
            this.categoryOptions = response.data;
          })
        },
  
        // 多选框选中数据
        handleSelectionChange(selection) {
          this.ids = selection.map(item => item.packageId)
          this.single = selection.length !== 1
          this.multiple = !selection.length
        },
        /** 搜索按钮操作 */
        handleQuery() {
          this.queryParams.pageNum = 1;
          this.getList();
        },
  
        /** 重置按钮操作 */
        resetQuery() {
          this.$refs.queryForm.resetFields();
          this.getList();
        },
        /** 删除按钮操作 */
        handleDelete(row) {
          const packageId = row.packageId || this.ids
          this.$confirm('是否确认删除ID为"' + packageId + '"的数据项?', "警告", {
            confirmButtonText: "确定",
            cancelButtonText: "取消",
            type: "warning",
          })
            .then(function () {
              return delPackage(packageId);
            })
            .then(() => {
              this.getList(); // 刷新数据
              this.$message.success("删除成功");
            })
            .catch(() => { });
        },
        /** 表单初始化 */
        resetForm() {
          // 可进行数据初始化工作
          this.form = {
            packageId: null,
            productId: null,
            packageName: null,
            times: null,
          }
        },
        /** 新增按钮操作 */
        handleAdd() {
          this.resetForm();
          this.open = true;
          this.title = "添加数据";
        },
        /** 修改按钮操作 */
        handleUpdate(row) {
          this.resetForm();
          const packageId = row.packageId || this.ids
          getPackage(packageId).then(response => {
            this.form = response.data
            this.form.productName = this.form.productDescription.productName
            this.open = true;
            this.title = "修改数据";
          })
        },
        /** 提交按钮 */
        submitForm: function () {
          this.$refs["form"].validate(valid => {
            if (valid) {
              if (this.form.packageId != null) {
                updatePackage(this.form).then(response => {
                  this.$message.success(response.msg);
                  this.getList();
                  this.cancel();
                })
              } else {
                addPackage(this.form).then(response => {
                  this.$message.success(response.msg);
                  this.getList();
                  this.cancel();
                })
              }
            }
          });
        },
        /** 取消按钮 */
        cancel() {
          this.open = false;
          this.title = "";
          this.resetForm();
        },
  
      }
    }
  </script>
  
  <style scoped lang="scss">
  
  </style>